[sdiy] Re: Bottom Ten ICs

[Richard Wentk]

At 14:10 07/10/2004 +0200, Rainer Buchty wrote:
> >That TI processor from the late 70s which kept could only ever keep
> >internal registers in external memory. Duh.
>
>Back then it was no stupid idea cause memory was fast enough.

It was architecturally stupid because if you're going to make no 
distinction between RAM and registers you might as well design the 
architecture to reflect that. Otherwise why bother with registers at all?

And in terms of speed it's always faster to do operations like compares and 
arithmetic on internal registers because you don't need an external fetch 
cycle.

So it was stupid for that reason too.

Richard